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For agents: JSON · MCP

LLM inference (Premium)

x402Grade BLast checked 58 min ago

POST https://agent402.tools/api/llm-premium

LLM inference proxy (Premium tier) - o3 or o3-mini reasoning models. Supports vision (up to 2 image URLs) and structured output (response_format: json_object or json_schema). No API key needed; pay per call via x402. Input capped at 32k chars, output at 2048 tokens.

Price$0.5per model request · paid in USD on Base
Uptime100%
4/4 probes · 1053 ms
Score71Grade B
Paid usage, 30 days1payers · 2 calls

How to buy

This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.

curl -i -X POST "https://agent402.tools/api/llm-premium"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the response

Recent checks

Checked (UTC)ResultStatusTimeLive price
2026-10-11 11:16Valid 4024021284 ms$0.5
2026-10-11 06:45Valid 402402753 ms$0.5
2026-10-11 02:15Valid 4024023259 ms$0.5
2026-10-10 21:45Valid 402402822 ms$0.5

Receipts

No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.

What a check proves